Quelle ExecutionEnvironment.java Sprache: JAVA

/*
* Copyright (c) 2009, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/

/*
* @test
* @bug 4780570 4731671 6354700 6367077 6670965 4882974
* @summary Checks for LD_LIBRARY_PATH and execution  on *nixes
* @requires os.family != "windows" & !vm.musl & os.family != "aix"
* @library /test/lib
* @modules jdk.compiler
*          jdk.zipfs
* @compile -XDignore.symbol.file ExecutionEnvironment.java
* @run main/othervm -DexpandedLdLibraryPath=false ExecutionEnvironment
*/

/*
* @test
* @bug 4780570 4731671 6354700 6367077 6670965 4882974
* @summary Checks for LD_LIBRARY_PATH and execution  on *nixes
* @requires os.family == "aix" | vm.musl
* @library /test/lib
* @modules jdk.compiler
*          jdk.zipfs
* @compile -XDignore.symbol.file ExecutionEnvironment.java
* @run main/othervm -DexpandedLdLibraryPath=true ExecutionEnvironment
*/

/*
* This tests for various things as follows:
* Ensures that:
*   1. uneccessary execs do not occur
*   2. the environment is pristine,  users environment variable wrt.
*      LD_LIBRARY_PATH if set are not modified in any way.
*   3. the correct vm is chosen with -server and -client options
*   4. the VM on Solaris correctly interprets the LD_LIBRARY_PATH32
*      and LD_LIBRARY_PATH64 variables if set by the user, ie.
*      i. on 32 bit systems:
*         a. if LD_LIBRARY_PATH32 is set it will override LD_LIBRARY_PATH
*         b. LD_LIBRARY_PATH64 is ignored if set
*      ii. on 64 bit systems:
*            a. if LD_LIBRARY_PATH64 is set it will override LD_LIBRARY_PATH
*            b. LD_LIBRARY_PATH32 is ignored if set
*   5. no extra symlink exists on Solaris ie.
*      lib/$arch/libjvm.so -> client/libjvm.so
* TODO:
*      a. perhaps we need to add a test to audit all environment variables are
*         in pristine condition after the launch, there may be a few that the
*         launcher may add as implementation details.
*      b. add a pldd for solaris to ensure only one libjvm.so is linked
*/

import jdk.test.lib.Platform;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class ExecutionEnvironment extends TestHelper {
    static final String LD_LIBRARY_PATH    = Platform.sharedLibraryPathVariableName();
    static final String LD_LIBRARY_PATH_32 = LD_LIBRARY_PATH + "_32";
    static final String LD_LIBRARY_PATH_64 = LD_LIBRARY_PATH + "_64";

    // Note: these paths need not exist on the filesytem
    static final String LD_LIBRARY_PATH_VALUE    = "/Bridge/On/The/River/Kwai";
    static final String LD_LIBRARY_PATH_32_VALUE = "/Lawrence/Of/Arabia";
    static final String LD_LIBRARY_PATH_64_VALUE = "/A/Passage/To/India";

    static final String[] LD_PATH_STRINGS = {
        LD_LIBRARY_PATH + "=" + LD_LIBRARY_PATH_VALUE,
        LD_LIBRARY_PATH_32 + "=" + LD_LIBRARY_PATH_32_VALUE,
        LD_LIBRARY_PATH_64 + "=" + LD_LIBRARY_PATH_64_VALUE
    };

    static final File testJarFile = new File("EcoFriendly.jar");

    static final boolean IS_EXPANDED_LD_LIBRARY_PATH =
            Boolean.getBoolean("expandedLdLibraryPath");

    public ExecutionEnvironment() {
        createTestJar();
    }

    static void createTestJar() {
        try {
            List<String> codeList = new ArrayList<>();
            codeList.add("static void printValue(String name, boolean property) {\n");
            codeList.add(" String value = (property) ? System.getProperty(name) : System.getenv(name);\n");
            codeList.add(" System.out.println(name + \"=\" + value);\n");
            codeList.add("}\n");
            codeList.add("public static void main(String... args) {\n");
            codeList.add(" System.out.println(\"Execute test:\");\n");
            codeList.add(" printValue(\"os.name\", true);\n");
            codeList.add(" printValue(\"os.arch\", true);\n");
            codeList.add(" printValue(\"os.version\", true);\n");
            codeList.add(" printValue(\"sun.arch.data.model\", true);\n");
            codeList.add(" printValue(\"java.library.path\", true);\n");
            codeList.add(" printValue(\"" + LD_LIBRARY_PATH + "\", false);\n");
            codeList.add(" printValue(\"" + LD_LIBRARY_PATH_32 + "\", false);\n");
            codeList.add(" printValue(\"" + LD_LIBRARY_PATH_64 + "\", false);\n");
            codeList.add("}\n");
            String[] clist = new String[codeList.size()];
            createJar(testJarFile, codeList.toArray(clist));
        } catch (FileNotFoundException fnfe) {
            throw new RuntimeException(fnfe);
        }
    }
    private void flagError(TestResult tr, String message) {
        System.err.println(tr);
        throw new RuntimeException(message);
    }
    /*
     * tests if the launcher pollutes the LD_LIBRARY_PATH variables ie. there
     * should not be any new variables or pollution/mutations of any kind, the
     * environment should be pristine.
     */
    @Test
    void testEcoFriendly() {
        Map<String, String> env = new HashMap<>();
        for (String x : LD_PATH_STRINGS) {
            String pairs[] = x.split("=");
            env.put(pairs[0], pairs[1]);
        }

        TestResult tr =
            doExec(env, javaCmd, "-jar", testJarFile.getAbsolutePath());

        if (!tr.isNotZeroOutput()) {
            flagError(tr, "Error: No output at all. Did the test execute ?");
        }

        for (String x : LD_PATH_STRINGS) {
            if (!tr.contains(x)) {
                if (IS_EXPANDED_LD_LIBRARY_PATH && x.startsWith(LD_LIBRARY_PATH)) {
                    // AIX does not support the '-rpath' linker options so the
                    // launchers have to prepend the jdk library path to 'LIBPATH'.
                    // The musl library loader requires LD_LIBRARY_PATH to be set in
                    // order to correctly resolve the dependency libjava.so has on libjvm.so.
                    String libPath = LD_LIBRARY_PATH + "=" +
                        System.getenv(LD_LIBRARY_PATH) +
                        System.getProperty("path.separator") + LD_LIBRARY_PATH_VALUE;
                    if (!tr.matches(libPath)) {
                        flagError(tr, "FAIL: did not get <" + libPath + ">");
                    }
                }
                else {
                    flagError(tr, "FAIL: did not get <" + x + ">");
                }
            }
        }
    }

    /*
     * ensures that there are no execs as long as we are in the same
     * data model
     */
    @Test
    void testNoExec() {
        Map<String, String> env = new HashMap<>();
        env.put(JLDEBUG_KEY, "true");
        TestResult tr = doExec(env, javaCmd, "-version");
        if (tr.testOutput.contains(EXPECTED_MARKER)) {
            flagError(tr, "testNoExec: found warning <" + EXPECTED_MARKER +
                    "> the process execing ?");
        }
    }

    /*
     * This test ensures that LD_LIBRARY_PATH* values are interpreted by the VM
     * and the expected java.library.path behaviour.
     * For Generic platforms (All *nixes):
     *    * All LD_LIBRARY_PATH variable should be on java.library.path
     */
    @Test
    void testJavaLibraryPath() {
        TestResult tr;

        Map<String, String> env = new HashMap<>();

        for (String x : LD_PATH_STRINGS) {
            String pairs[] = x.split("=");
            env.put(pairs[0], pairs[1]);
        }

        tr = doExec(env, javaCmd, "-jar", testJarFile.getAbsolutePath());
        verifyJavaLibraryPathGeneric(tr);
    }

    private void verifyJavaLibraryPathGeneric(TestResult tr) {
        if (!tr.matches("java.library.path=.*" + LD_LIBRARY_PATH_VALUE + ".*")) {
            flagError(tr, "testJavaLibraryPath: java.library.path does not contain " +
                    LD_LIBRARY_PATH_VALUE);
        }
    }

    private void verifyJavaLibraryPathOverride(TestResult tr,
            boolean is32Bit) {
        // make sure the 32/64 bit value exists
        if (!tr.matches("java.library.path=.*" +
                (is32Bit ? LD_LIBRARY_PATH_32_VALUE : LD_LIBRARY_PATH_64_VALUE) + ".*")) {
            flagError(tr, "verifyJavaLibraryPathOverride: " +
                " java.library.path does not contain " +
                    (is32Bit ? LD_LIBRARY_PATH_32_VALUE : LD_LIBRARY_PATH_64_VALUE));

        }
        // make sure the generic value is absent
        if (!tr.notMatches("java.library.path=.*" + LD_LIBRARY_PATH_VALUE + ".*")) {
            flagError(tr, "verifyJavaLibraryPathOverride: " +
                    " java.library.path contains " + LD_LIBRARY_PATH_VALUE);
        }
    }

    /*
     * ensures we have indeed exec'ed the correct vm of choice if it exists
     */
    @Test
    void testVmSelection() {
        boolean haveSomeVM = false;
        if (haveClientVM) {
            tryVmOption("-client", ".*Client VM.*");
            haveSomeVM = true;
        }
        if (haveServerVM) {
            tryVmOption("-server", ".*Server VM.*");
            haveSomeVM = true;
        }
        if (!haveSomeVM) {
            String msg = "Don't have a known VM";
            System.err.println(msg);
            throw new RuntimeException(msg);
        }
    }

    private void tryVmOption(String opt, String expected) {
        TestResult tr = doExec(javaCmd, opt, "-version");
        if (!tr.matches(expected)) {
            flagError(tr, "the expected vm " + opt + " did not launch");
        }
    }

    /*
     * checks to see there is no extra libjvm.so than needed
     */
    @Test
    void testNoSymLink() {
        if (is64Bit) {
            return;
        }

        File symLink = null;
        String libPathPrefix = "/lib";
        symLink = new File(JAVAHOME, libPathPrefix +
                getJreArch() + "/" + LIBJVM);
        if (symLink.exists()) {
            throw new RuntimeException("symlink exists " + symLink.getAbsolutePath());
        }
    }
    public static void main(String... args) throws Exception {
        ExecutionEnvironment ee = new ExecutionEnvironment();
        ee.run(args);
    }
}

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